Suppose you would like to serve crisp lettuce, but your lettuce has become limp. To make it crisp again, in which of the following should you soak the lettuce? Hypotonic solution O all of the answers are correct O Isotonic solution O Hypertonic solution

Lipid bilayers form spontaneously in a process driven by the hydrophobic effect. Explain how the hydrophobic effect drives bilayer formation from individual lipids in an aqueous environment. Describe how the physical properties of the lipid bilayer are determined by the chemical properties of the membrane lipid components. Diagrams are encouraged for both parts of the question.

What property of water helps retain heat in the water when air temperature drops?  cohesion    evaporation   density   adhesion

Why methylene blue, a basic dye, can be used to stain cytoplasm, a basic structure? Why cytoplasm is basic and at the same time negatively charged? I am confused with the terms "basic dye" and "acidic dye". Is it true that a basic dye is positively charged? If so, why is cytoplasm which is negatively charged called basic materials? Could you please explain more on these?